> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Top Customers, BigCommerce

> Top Customers for BigCommerce stores. Tracked live in Vortex IQ Nerve Centre. How to read it, why it matters, and how to act on it.

**Metrics type:** [Supporting Metrics](/nerve-centre/overview#metrics-types-explained)  •  **Category:** [Ecommerce Platform](/nerve-centre/connectors#connectors-by-type)

## At a glance

> Top BigCommerce customers ranked by 90-day spend. The card the marketing and customer-service teams use for VIP recognition, retention investment, and B2B account-management decisions. The 5% of customers who drive 30-50% of revenue, this is your shortlist.

|                                |                                                                                                                                                                                               |
| ------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **What it counts**             | `SUM(total_inc_tax) GROUP BY customer_id` over the 90-day period. Each customer's order total summed, ranked descending. Default top-100. Guest orders (no customer\_id) excluded by default. |
| **VAT / tax treatment**        | Tax-inclusive (`total_inc_tax`).                                                                                                                                                              |
| **Shipping**                   | Included.                                                                                                                                                                                     |
| **Discounts**                  | Already deducted.                                                                                                                                                                             |
| **Refunds**                    | Not deducted (gross).                                                                                                                                                                         |
| **Cancelled / voided orders**  | Included if order created.                                                                                                                                                                    |
| **Currency**                   | Multi-currency without FX. Filter by currency for clean comparison.                                                                                                                           |
| **Channels / sources**         | All channels contribute. A B2B customer ordering through both web and B2B portal sums across both.                                                                                            |
| **Customer ID stability**      | BC's `customer_id` is stable per registered customer. Guests get synthetic IDs per order; filtered out by default. Toggle "include guests by email" to dedupe and include guest spend.        |
| **Top-customer concentration** | Top 5% of customers drive 30-50% of revenue typically. Loss of any top-10 customer is a material revenue event.                                                                               |
| **B2B Edition note**           | B2B customers typically dominate due to higher AOVs (5-10× retail). Filter by customer group for cleaner segment views.                                                                       |
| **Time window**                | `90D` (30-day window too short for top-customer signal stability)                                                                                                                             |
| **Alert trigger**              | None on this card directly.                                                                                                                                                                   |
| **Roles**                      | owner, marketing                                                                                                                                                                              |

## Calculation

Calculated automatically from your BigCommerce data. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading.

## Worked example

A US homewares brand on BigCommerce Enterprise (B2B Edition active), 90-day window 14 Feb 26 to 14 May 26.

| Rank              | Customer                   | Group     | Orders | Total spend            | AOV     | Tenure  | Verdict                   |
| ----------------- | -------------------------- | --------- | ------ | ---------------------- | ------- | ------- | ------------------------- |
| 1                 | Atlantic Hospitality Group | Wholesale | 14     | \$84,200               | \$6,014 | 4.2 yrs | **Strategic B2B account** |
| 2                 | Maple Hotels & Spas        | Wholesale | 8      | \$58,400               | \$7,300 | 2.8 yrs | High-value B2B            |
| 3                 | Westside Boutique Hotels   | Wholesale | 11     | \$46,800               | \$4,255 | 3.1 yrs | Steady B2B                |
| 4                 | Linda K. (retail VIP)      | Retail    | 6      | \$14,200               | \$2,367 | 5.0 yrs | **Loyal retail VIP**      |
| 5                 | Robert M. (retail VIP)     | Retail    | 4      | \$11,400               | \$2,850 | 1.8 yrs | New high-spender          |
| 6-10              | (5 retail VIPs)            | Retail    | mixed  | \$32,400               | mixed   | mixed   | VIP cohort                |
| 11-50             | (40 customers)             | Mixed     | mixed  | \$84,000               | mixed   | mixed   | Solid mid-tier            |
| 51-100            | (50 customers)             | Mixed     | mixed  | \$58,000               | mixed   | mixed   | Tail loyalists            |
| **Top 100 total** |                            |           |        | **\$389,400**          |         |         |                           |
| **Top 100 share** |                            |           |        | **42% of 90D revenue** |         |         | Pareto in action          |

What's interesting:

1. **Top 3 customers (all B2B) account for 51% of top-100 spend, \~22% of total store revenue.** This is concentration risk: losing any of the top 3 wholesale accounts could move quarterly revenue 5-10%. **Action: dedicated account manager for top 3, quarterly business reviews, contract renewals proactively managed.**
2. \*\*Atlantic Hospitality Group at $84k / 14 orders is the strategic crown jewel.** 4-year tenure suggests stable relationship; AOV of $6k means meaningful per-order revenue. Investigate: is contract up for renewal? Are competitors pitching them? Do they need a custom product line?
3. **The retail VIP tier (ranks 4-10)** are gold for brand storytelling and retention. Linda K. at 5-year tenure with \$14k 90-day spend is the kind of customer who refers friends. **Action: invite to private events, early-access launches, personalised outreach. Loyalty program tier above standard.**
4. **Robert M. as a new high-spender** is a "watch closely" pattern. 1.8-year tenure means relatively new; \$2,850 AOV is high; could become a top-3 if growth continues. Action: nurture deliberately, ensure smooth experience, track for repeat behaviour.
5. **The 40-50 mid-tier customers (ranks 11-50)** are the loyalty-program backbone. Each spends meaningfully but not enough for white-glove treatment. Standard VIP perks (free shipping, early access) keep them engaged.
6. **Top 100 = 42% of revenue.** This is healthy concentration for a multi-channel BC store with B2B. Pure retail stores typically see 25-35% top-100 concentration; pure B2B sees 60-75%. Hybrid stores like this fall in between.

Action priority order:

1. **Account-management plan for top-3 B2B** this week, dedicated AM, quarterly reviews, retention-priority contracts.
2. **Retail VIP recognition this month** personalised emails, early access to next launch, private event invitations.
3. **Watch-list mid-tier risers** track ranks 51-100 monthly for promotion to retail VIP tier as spend grows.
4. **Quarterly: assess concentration risk** if top-3 share rises above 30% of total revenue, diversify proactively.
5. **B2B / retail segmented views** run this card filtered to each customer group monthly for cleaner per-segment decisions.

## Sibling cards merchants should reference together

| Card                                                                                     | Why pair it with Top Customers                                                       |
| ---------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ |
| [BC Customer Segments](/nerve-centre/kpi-cards/bigcommerce/customer-spend-segments)      | Segment breakdown (new / returning / VIP); top customers anchor the VIP segment.     |
| [Customer Count](/nerve-centre/kpi-cards/bigcommerce/unique-customers)                   | The total customer base; top-100 ÷ total = concentration ratio.                      |
| [Repeat Rate](/nerve-centre/kpi-cards/bigcommerce/repeat-customer-rate)                  | Repeat-customer rate; top customers by definition are repeats.                       |
| [Order Frequency](/nerve-centre/kpi-cards/bigcommerce/customer-order-frequency)          | Per-customer order frequency; top customers usually have high frequency or high AOV. |
| [BC AOV by Country](/nerve-centre/kpi-cards/bigcommerce/aov-by-country)                  | Top customers' country mix; B2B accounts often cluster in one region.                |
| [Churn Risk](/nerve-centre/kpi-cards/bigcommerce/customer-churn-risk)                    | Risk of losing top customers; an essential pairing for proactive retention.          |
| [BC Guest vs Registered](/nerve-centre/kpi-cards/bigcommerce/guest-vs-registered-orders) | This card excludes guests; cross-reference for the missing guest cohort.             |
| [`shopify.repeat_rate`](/nerve-centre/kpi-cards/shopify/repeat-customer-rate)            | Cross-platform reference for top-customer analysis.                                  |

## Reconciling against the vendor's own dashboard

**Where to look in BigCommerce Control Panel:**

[Customers → View](https://login.bigcommerce.com/deep-links/manage/customers) sorted by total spend descending gives a basic top-customers view. [Analytics → Customer Reports](https://login.bigcommerce.com/deep-links/manage/analytics) on Pro / Enterprise plans includes a top-customers report. For B2B Edition, [B2B Edition → Customers](https://login.bigcommerce.com/deep-links/manage/b2b-customers) shows the wholesale-portal customer view separately.

**Why our number may legitimately differ from BC:**

| Reason                                                                                                                       | Direction                                        |
| ---------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------ |
| **Time window**. BC's customer view shows lifetime spend by default; this card uses 90-day rolling.                          | Different totals                                 |
| **Guest deduplication**. BC counts guest orders separately each time; we optionally dedupe by email.                         | Vortex IQ may show HIGHER guest spend if deduped |
| **Multi-currency aggregation**. BC may convert; we don't FX.                                                                 | Different totals                                 |
| **Refund netting**. BC reports may show net spend; we show gross.                                                            | BC LOWER if netted                               |
| **Multi-channel customers**. A customer ordering through both web and B2B portal sums in our view; BC may split per channel. | Different totals on multi-channel customers      |
| **Anonymous-customer orders**. POS walk-in customers without account creation may be invisible to both views.                | Both miss the same                               |

**Cross-connector reconciliation (when CRM and email integrations are connected):**

| Card                                                                                       | Expected relationship                                                                           | What causes legitimate divergence                                               |
| ------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------- |
| [`klaviyo.kl_top_customers_by_revenue`](/nerve-centre/klaviyo/kl_top_customers_by_revenue) | Klaviyo's top customers by Klaviyo-attributed revenue; should overlap with this card's top-100. | Klaviyo only attributes email-driven revenue; this card is all-channel revenue. |
| [`hubspot.hs_top_accounts_by_value`](/nerve-centre/hubspot/hs_top_accounts_by_value)       | HubSpot accounts (often B2B); should match the B2B-channel slice.                               | HubSpot tracks pipeline + closed; BC tracks paid orders.                        |

**The top-customers view is BC-aligned with similar cards on Shopify (`repeat_rate`) and Adobe Commerce; the merchant-facing semantics are equivalent.**

***

<details>
  <summary><em>Same-metric documentation cross-reference (for agencies running multiple platforms)</em></summary>

  * [`shopify.repeat_rate`](/nerve-centre/kpi-cards/shopify/repeat-customer-rate)
  * [`adobe_commerce.top_customers`](/nerve-centre/adobe_commerce/top_customers) (planned)
</details>

## Known limitations / merchant FAQs

**Why does my top-customer ranking shift week-over-week?**
Top customers buy in bursts (B2B reorder cycles, retail seasonal restocks). A 90-day window smooths individual purchase spikes but ranks still shift as new orders push customers up and trailing windows drop old orders. The top-3 are usually stable across weeks; ranks 30+ swing more.

**Should I exclude wholesale customers from this view?**
Depends on the question. For overall customer concentration risk, include all. For retail-VIP recognition programs, filter to retail-only. For wholesale account management, filter to B2B group. The card supports group filters; configure saved views per use-case.

**Why do guest customers not show up?**
Guests have no `customer_id` (or each order gets a synthetic ID), so they can't be aggregated reliably. Toggle "include guests by email" to dedupe by email address; this catches the same email-address guest making multiple orders without registering. Some BC merchants see 30-50% guest checkout rate; turning this on can materially shift the rankings.

**My #1 customer is a friend / family member, what do I do?**
Tag the account internally (BC custom field `internal_account = true`) and configure the card to exclude tagged accounts. Otherwise the top of the list misrepresents real customer concentration. Many BC stores have 1-3 internal accounts (founder's family, employees) that distort top-N views.

**Why is my top customer's spend much higher than their AOV × order count?**
Likely because they have a refunded high-value order in the period; the gross spend includes the original transaction. Net spend would be lower. For accurate net-customer LTV, cross-reference each top customer's refund history.

**Can I see lifetime value instead of 90-day spend?**
Toggle the time window to "Lifetime" for the card. Lifetime ranking reveals long-tenure customers who may not appear in 90-day rankings (a 5-year customer with 4 small orders/year is below 90-day radar but is high-LTV). For retention investment, lifetime view is more meaningful; for current-period recognition, 90-day.

**My top retail customer hasn't ordered in 60 days, are they at risk?**
Possibly. Cross-reference [Churn Risk](/nerve-centre/kpi-cards/bigcommerce/customer-churn-risk) for the at-risk segment. Customers in the top-100 with no recent orders should get proactive outreach: a personalised email, an exclusive offer, a "we miss you" check-in. Reactivation rates on top-100 customers are typically 20-30% with light-touch outreach.

**Should I share this list with my customer-service team?**
Yes, the top-50 should be flagged in your CS / chat tool with VIP status. When they contact support, they should be routed to senior agents, given priority queue, and any complaints handled white-glove. The cost of losing a top-50 customer (years of LTV) far exceeds the cost of giving them senior CS attention.

**My B2B Edition portal customers all have business names, where are the contacts?**
The `customer_id` in BC's B2B Edition can be either an Account-level (business) or a Contact-level (individual user within the business). Most B2B portals operate at Account level; the spend rolls up to the business name. Drill into the customer record in BC for the contact-level user list and order assignment.

**Why doesn't this card show the LTV / customer cohort analysis?**
That's a separate card (planned: `bc_customer_ltv_cohort`). This card is the spend ranking; cohort and LTV analysis is a different shape (matrix or chart, not ranking). The two pair well.

**A new customer jumped to rank 8 with one order, normal?**
Yes for B2B (large first orders are common); unusual for retail. A retail customer hitting top-10 with one order is either a wholesale-style purchase mis-categorised as retail, an estate purchase, or a gift-from-friend large order. Investigate; it may be a B2B-prospect to convert formally, or a one-off that won't repeat.

**Multi-currency, do top customers sum across currencies?**
Without a currency filter, yes (naively). A customer transacting in both USD and EUR sums the native amounts. Filter by currency for accurate per-currency ranking; or use a single-currency conversion view for unified ranking. Most multi-currency stores want one filtered view per major currency.

***

### Tracked live in Vortex IQ Nerve Centre

*Top Customers* is one of hundreds of KPI pulses Vortex IQ tracks across BigCommerce and 70+ other ecommerce connectors. Nerve Centre runs the detection layer; Vortex Mind investigates the cause when something moves; Ask Viq lets you interrogate any number in plain English.

[Start for free](https://app.vortexiq.ai/login) or [book a demo](https://www.vortexiq.ai/contact-us) to see this metric running on your own data.
